52530040 has 32 divisors (see below), whose sum is σ = 118404000. Its totient is φ = 20974464.

The previous prime is 52530019. The next prime is 52530053. The reversal of 52530040 is 4003525.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36046 + ... + 37474.

It is an arithmetic number, because the mean of its divisors is an integer number (3700125).

Almost surely, 2^52530040 is an apocalyptic number.

It is an amenable number.

52530040 is an abundant number, since it is smaller than the sum of its proper divisors (65873960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52530040 is a wasteful number, since it uses less digits than its factorization.

52530040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 52530040 is about 7247.7610335882. The cubic root of 52530040 is about 374.5150234347.

Adding to 52530040 its reverse (4003525), we get a palindrome (56533565).

The spelling of 52530040 in words is "fifty-two million, five hundred thirty thousand, forty".